NC0049662_Authorization to Construct_20031125

701 Corporate Center Drive, Suite 475, Raleigh, North Carolina 27607
November 25, 2003
State of North Carolina
Department of Environmental Health and Natural Resources
Dave Goodrich
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Permit No. NC0049662
Heater Utilities, Inc.
Hawthorne Subdivision WWTP Expansion Phase 3 of 3
Authorization to Construct dated March 25,1994
ET No. 65105
PROFESSIONAL ENGINEERS STATEMENT:
DEC 1 2003
I, LARRY W. MITCHELL as the duly registered Professional Engineer in the State of
North Carolina, having been authorized to periodically observe the construction of the
project, Hawthorne WWTP Phase 3 of 3, addition of 124,000 gallon aeration basin, 3-
blowers at 320 scfm each, 16,000 gallon clarifier with 23 feet of weir and 20,000 gallon
sludge holding for Heater Utilities, Inc. hereby state that with the best of my abilities, due
care and diligence was used in observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
Larry W. Mitchell, PE
Project Manager
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Tim Thomas, Heater Utilities, Inc.
Justus Everett, ABE Utilities, Inc.
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Raleigh Regional Office via Fax [phone]
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919.854.620o
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919.854.6259
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State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
March 25, 1994
William E. Grantmyre, President
Heater Utilities
P.O. Drawer 4889
Cary, NC 27519
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Subject: Permit No. NC0049662
Authorization to Construct
Heater Utilities
Hawthorne Subdivision
Wastewater Treatment Facility
Wake County
Dear Mr. Granmyre:
A letter of request for an Authorization to Construct was received December 14, 1993 by the
Division and final plans and specifications for the subject project have been reviewed and found to be
satisfactory. Authorization is hereby granted for the construction and operation of a 178,000 gpd
expansion for a total wastewater treatment capacity of 250,000 gpd. Flow shall be split 4 ways: 72,000
gpd split equally to the existing dual package plants and 178,000 gpd split equally to the proposed dual
package plants. The expansion consists of a comminutor designed to pass flows up to 600 gpm, 75,000
gpd flow equalization basin with two blowers rated at 250 cfm, and dual 180 gpm pumps, flow control
chamber with weirs to split flow 4 ways, dual 124,000 gallon aeration basins each with 3 320 cfm
blowers, 2 dual hopper type clarifiers rated to at least 16,000 gallons each with at least 23 feet of weir
length, four sludge return airlifts, four scum removal airlifts, two 20,000 gallon sludge holding tanks, two
2500 gallon chlorine contact tanks with tablet chlorination and post aeration (to be used for back-up
purposes only), Ultraviolet irradiation equipment sized to meet a Fecal coliform limit of 200#/100 ml for
an average flow of 250,000 gpd, standby generator, potable water source, influent Ferric sulphate feed to
comply with the total phosphorus limit of 2 mg/1, and all the associated valves, piping, and appurtenances
with discharge of treated wastewater into Upper Barton Creek which is classified WS-IV NSW waters in
the Neuse River Basin.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES
Permit No. NC0049662 issued August 19, 1993, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No.
NC0049662.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S.
143-215.1 and in a manner approved by the North Carolina Division of Environmental Management.
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance
conditions, the Permittee shall take immediate corrective action, including those as may be required by this
Division, such as the construction of additional or replacement wastewater treatment or disposal facilities.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NC0049662
Authorization to Construct
Heater Utilities
D
Hawthorne Subdivision WWTP
March 25, 1994
Page 2
The Raleigh Regional Office, telephone number [phone], shall be notified at least forty-
eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be
made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00
a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification
must be received from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct and the approved plans and
specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC
27626-0535.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a
certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment
facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the
classification assigned to the wastewater treatment facilities by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with
the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at
least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and
must properly manage and document daily operation and maintenance of the facility and must comply with
all other conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must
submit a letter to the Certification Commission which designates the operator in responsible charge within
thirty days after the wastewater treatment facilities are 50% complete.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the
life of the facility.
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by the Division of Environmental Management in accordance with
North Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying
with any and all statutes, rules, regulations, or ordinances which may be imposed by other government
agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have any
questions or need additional information, please contact Susan A. Wilson, telephone number 919/733-
5083.
Sincerely,
cc: Wake County Health Department
Raleigh Regional Office, Water Quality
Training and Certification Unit